HVAC filter



FIG. 1 is a front perspective view of an embodiment of an HVAC filter showing our new design.

FIG. 2 is a rear perspective view thereof.

FIG. 3 is a front view thereof.

FIG. 4 is a rear view thereof.

FIG. 5 is a top view thereof.

FIG. 6 is a bottom view thereof.

FIG. 7 is a right view thereof.

FIG. 8 is a left view thereof.

FIG. 9 is a front perspective view of another embodiment of an HVAC filter with a buffer structure showing our new design.

FIG. 10 is a rear perspective view thereof.

FIG. 11 is a front view thereof.

FIG. 12 is a rear view thereof.

FIG. 13 is a top view thereof.

FIG. 14 is a bottom view thereof.

FIG. 15 is a right view thereof; and,

FIG. 16 is a left view thereof.

Any broken lines shown represent unclaimed subject matter and form no part of the claimed design. Any shade lines shown represent surface shading and not surface ornamentation, color, or material type. Any dot-dashed boundary lines shown do not form part of the claimed design. If dot-dashed boundary lines are shown, the bounds of the claimed design are defined with dot-dashed boundary lines when the boundary does not exist in reality in the article embodying the design. 

CLAIM The ornamental design for a HVAC filter, as shown and described. 